I believe that recycled/partially recycled oils MUST say so on the container. Such as Valvoline "NEXT Generation" line of oils which may be discontinued, IDK. These ValNextGen of oils stated that they were made/blended using 50% recycled oils.
NO SuperTech oil that I am aware of uses recycled oils and all are held in high regard, regardless of their weight/grade or blender. SuperTech oils use several different blenders for their oils(depending on region), ranging from Warren Performance Products(WPP/WNE), Exxon/Mobil, Warren Unilube and maybe even Costal...again, IDK of all of their blenders/contracts.